SOLUTION: In a certain class of​ students, there are 8 boys from​ Wilmette, 4 girls from​ Kenilworth, 8 girls from​ Wilmette, 7 boys from​ Glencoe, 3 boys from Kenilworth and 4 gir

Algebra ->  Probability-and-statistics -> SOLUTION: In a certain class of​ students, there are 8 boys from​ Wilmette, 4 girls from​ Kenilworth, 8 girls from​ Wilmette, 7 boys from​ Glencoe, 3 boys from Kenilworth and 4 gir      Log On


   

Question 1161119: In a certain class of​ students, there are 8 boys from​ Wilmette, 4 girls from​ Kenilworth, 8 girls from​ Wilmette, 7 boys from​ Glencoe, 3 boys from Kenilworth and 4 girls from Glencoe. If the teacher calls upon a student to answer a​ question, what is the probability that the student will be from​ Kenilworth?
Answer by ikleyn(52797) About Me  (Show Source):
You can put this solution on YOUR website!
.

    P = %284+%2B+3%29%2F%288+%2B+4+%2B+8+%2B+7+%2B+3+%2B+4%29 = 0.2059 = 20.59%  (approximately).

The formula is self-explanatory.

Solved.